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Why fragments, and when to use fragments instead of activities?
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290
#1 & #2 what are the purposes of using a fragment & what are the
advantages and d...
[ :Unexpected operator in shell programming [duplicate]
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WolphWolph
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3
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...postgresql.org/docs/9.3/static/plpgsql-control-structures.html, example 40-2 right at the bottom.
That's usually the easiest way. You can do some magic with rules, but it's likely going to be a lot messier. I'd recommend the wrap-in-function approach over that any day.
This works for single row, o...
Check if a program exists from a Makefile
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12 Answers
12
Active
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DistutilsOptionError: must supply either home or prefix/exec-prefix — not both
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289
Are you using OS X and Homebrew? The Homebrew python page https://github.com/Homebrew/brew/bl...
Easy way to pull latest of all git submodules
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2576
If it's the first time you check-out a repo you need to use --init first:
git submodule upda...
How to use ELMAH to manually log errors
...rLog.GetDefault(HttpContext.Current).Log(new Elmah.Error(ex));
}
ELMAH 1.2 introduces a more flexible API:
try
{
some code
}
catch(Exception ex)
{
Elmah.ErrorSignal.FromCurrentContext().Raise(ex);
}
There is a difference between the two solutions:
Raise method applies ELMAH filterin...
Use space as a delimiter with cut command
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372
cut -d ' ' -f 2
Where 2 is the field number of the space-delimited field you want.
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Is it safe to delete a void pointer?
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24
It depends on "safe." It will usually work because information is stored along with the pointe...